Question

Coating iron objects with oil/water prevents rusting.​

Answer 1

Answer:

oil is answer

Explanation:

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Answer 2

Answer:

When metal is coated in oil it forms a protective barrier that stops any external elements from seeping through. This includes water. As H2O is unable to penetrate the metal, the rusting process doesn't start. As well as tangible water, oil also repels the water that's present in oxygen.